A preliminary molecular phylogeny of the genus , with a synonym of (Lepidoptera, Hesperiidae).

A molecular phylogeny of the genus based on the mitochondrial COI and the nuclear EF-1α genes using maximum likelihood and Bayesian inference is proposed. The analyses include 19 specimens from nine ingroup species. The monophyly of is not strongly supported, but two strongly supported monophyletic groups within the genus are recognized: the group and the group. Judging from combination of the molecular evidence and morphological features, the former consists of six species, including , while four species belong to the latter. Krajcik, 2013 is confirmed to be a of Sugiyama, 1996. The key to the species of the genus is modified to reflect these results.